diff --git a/components/sceneutil/mwshadowtechnique.cpp b/components/sceneutil/mwshadowtechnique.cpp
index fa0269776c..ae1c837e10 100644
--- a/components/sceneutil/mwshadowtechnique.cpp
+++ b/components/sceneutil/mwshadowtechnique.cpp
@@ -645,6 +645,7 @@ MWShadowTechnique::Frustum::Frustum(osgUtil::CullVisitor* cv, double minZNear, d
     {
         osg::Matrix::value_type zNear = osg::maximum<osg::Matrix::value_type>(cv->getCalculatedNearPlane(),minZNear);
         osg::Matrix::value_type zFar = osg::minimum<osg::Matrix::value_type>(cv->getCalculatedFarPlane(),maxZFar);
+        zNear = std::min(zNear, zFar);
 
         cv->clampProjectionMatrix(projectionMatrix, zNear, zFar);